Key.



c.w. PETTIGROVE.

KEY.

APPLICATION FILED IUNE 18. 1915.

l-,155,%. PatentedSapt. 28, 1915.

C. W. Peitzjrorke wi liwaooeo mww coLUMmA WRAP" 60.,WAMINGM, D. c.

w I w m te that a r e;

CARL w; rnrrtsnovnlon n'niaon'r, MAINE.

"KEY."

To all err/mm it may concern:

Be it known thatl, CARL W. Pn'r'rrcnovn, a citizenfof the United States,residing at Tremont, in the county of Hancock and- State of Maine, have invented new and useful liiipi'ovenients in .Keysy ofv which the following is a specification This invention relates to a :key designed for use in winding a clock or the like, and to a key which'is provided mechanism. c. 3,

The primary object of the invention. is to provide a key ofthis character, with a housing containing a ratchet mechanism, said housing being.v rotatable about the shank of the key and. serving-as a finger hold whenthe key is used to wind a clock or the like.

A further object of v the invention is to provide the housing containing the ratchet mechanism with a manually operable means for preventing the rotation of thehousing upon the stem orshank of the key, thereby causing said shank and housing to rotate in unison when the key is operated to wind a clock.

A further object of the invention is to provide the ratchet mechanism withinthe rotatable housing with a spring the free'end of which is slidably engaged with a pivoted dog of the ratchet'mechanism, said spring being manually slidable within the housing to limit rotation of the housing upon the stem or shank of the key to one direction when desired. I, I

With these and other objects in view the invention consists in the improved construction and novel combination and arrangement of parts j which will be hereinafter more fully described andrparticularly pointed out in the claim.

The preferred embodiment of the invention has been illustrated in the accompanying drawing,but no restriction is necessarily made to the precise details of construction,

Application filed June 18, 1915., Seria1No.,34, 920.

with a ratchet Specification 6r Letters Patent. Patentedgept. 28, 1915.

tion of the key the sliding spring being shown in a position similar to that in Fig. 2.

Fig. 5 is a transverse vertical sectional view on the line 55-of Fig. 2.

Like characters of reference denote corresponding parts throughout the several views in the drawing. The HHPI'OVQCl lock key comprises a shank l, a. rotatable housing 2, which is mounted uponthe shank 1, and a ratchet mechanism 3, which is disposed within the rotatable housing 2.

nally extending channel 4 in one end thereof adaptedto receive .the winding stem of the clock while the remaining end ofthe shank is provided with ratchet wheel Sisecured tothe shankby meansof a'bushing 6. 1

Mounted for rotationlupon thebushing 6 and positioned against the ratchet wheel 5 thereon by means of a pin 7 which extends The shank 1 ofthe key has a longitudi through the bushing and shank, is a housing 8 The housingS is provided with aperlpheral flange 9 which is recessed at diametrically opposite points to form finger and thumb engaging recesses 10 which cooperate with the knurled circumference of the flange 9 to form a finger hold by means of which the key may be rotated when winding a clock. v

Pivoted upon the front wall of the housing 2 above the ratchet wheel 5 is a dog 11 having an arcuate face 12, and spaced wheel engaging teeth 14;. The rear wall of the housing 2 at its juncture with the flange 9 is provided with a circumferentially extending slot 15 while the flange '9 adjacent one end ofthe slot is provided with spaced spring receiving loops 16. Disposed within. the loops 16 is one end of a leaf spring 17, said end being adapted to closely conform to the contour of the flange 9 and provided with laterally eXtending arms 18 one of which extends through the slot 15 in the rear wall of the housing 2 for a purpose which will be hereinafter" described. The remaining end of the spring 17'is disposed beneath the end of the spring which is mounted for sliding movement within the loops 16 with the free end thereof slidably engaged with the arcuate face 12 on the dog 11, which through'the action of the spring is maintained in'engagement with the ratchet wheel 5.

When it is desired to wind the clock by means of the key the shank 1 is engaged with the w inding stem the end of the spring 17 is slid by means of the arm 18 which projects through theslot in thehousing toengage the end of the dog 11} nearest the direction in which it is desired the housing and shank be rotated in unison. V With reference to Fig. 2 inthe drawing it Will be seen thatwith the spring in the posi tion shown, the housing 2 and shank 1 may be turned in unison toward the left; but that upon retrograde movementof the housing the same is freely rotatable upon the shank toward the right." From the above statements itis clearly apparent that'the key is adapted to'Wind a clock in Which-the Winding stem of the clock can turn either towa'rd the right or to-the left and that the clock may be Wound by the key Without the oper-' a t-or releasinghis grasp fronrthe key While a Copiesflof'this patent may be obtained for five cents each, by addressing Washington, D. 0.! I

which" is simple in. construction, inexpens i 1 i i V VHaving' thus described the invention, What is claimed as new is :x:

In a clock key, a stem, a slotted housing sive of manufacture and highly efficient in mounted for rotation upon the stem a re cessedfiange'formed on said housing, means for preventing'the rotation of the housing upon the stem including a pivoted pawl a spring disposed beneath said flange and having one end thereof slidably engagedwvith the pawl, and an arm upon said spring extending in the housing whereby the free end of the spring may be slid" upon the pavvllto cause the above'mentioned means to prevent the rotationof thehousing upon the sten 'in" one direction: I 5 In testimony whereof I aflix my signature in presence of two- Witnesses.

p CARL W. PETTIGBOVE. V

Witnesses: HUBERT P. RICHAR SON,

THoMAS LAWTON.-

the Commissioner of Patents, 

